mirror of
https://github.com/ElvishArtisan/rivendell.git
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f8dfc52cf0
* Fixed a race condition in the PAD XML feed that could cause corrupt updates. Signed-off-by: Fred Gleason <fredg@paravelsystems.com>
116 lines
2.2 KiB
C++
116 lines
2.2 KiB
C++
// rdjsonframer.cpp
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//
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// Frame an unsynchronized stream of JSON messages
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//
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// (C) Copyright 2024 Fred Gleason <fredg@paravelsystems.com>
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//
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// This program is free software; you can redistribute it and/or modify
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// it under the terms of the GNU Library General Public License
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// version 2 as published by the Free Software Foundation.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public
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// License along with this program; if not, write to the Free Software
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// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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//
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#include "rdjsonframer.h"
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RDJsonFramer::RDJsonFramer(QTcpSocket *in_sock,QObject *parent)
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: QObject(parent)
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{
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d_escaped=false;
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d_quoted=false;
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d_level=0;
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d_socket=in_sock;
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connect(d_socket,SIGNAL(readyRead()),this,SLOT(readyReadData()));
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}
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RDJsonFramer::RDJsonFramer(QObject *parent)
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: QObject(parent)
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{
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d_escaped=false;
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d_quoted=false;
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d_level=0;
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d_socket=NULL;
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}
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RDJsonFramer::~RDJsonFramer()
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{
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if(d_socket!=NULL) {
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delete d_socket;
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}
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}
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QByteArray RDJsonFramer::currentDocument() const
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{
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return d_current_document;
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}
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void RDJsonFramer::write(const QByteArray &data)
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{
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for(int i=0;i<data.size();i++) {
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QChar c=data.at(i);
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d_data+=c;
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if((c.cell()=='\\')&&(!d_escaped)) {
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d_escaped=true;
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}
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else {
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switch(c.cell()) {
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case '{':
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if(!d_quoted) {
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d_level++;
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}
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break;
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case '}':
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if(!d_quoted) {
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if(--d_level==0) {
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d_current_document=d_data+"\n";
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d_escaped=false;
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d_quoted=false;
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d_level=0;
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d_data.clear();
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emit documentReceived(d_current_document);
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}
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}
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break;
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case '"':
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if(!d_escaped) {
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d_quoted=!d_quoted;
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}
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break;
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}
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d_escaped=false;
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}
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}
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}
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void RDJsonFramer::reset()
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{
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d_escaped=false;
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d_quoted=false;
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d_level=0;
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d_data.clear();
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emit documentReset();
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}
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void RDJsonFramer::readyReadData()
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{
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write(d_socket->readAll());
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}
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